1960s diamond and marquise sapphire fancy cluster ring

1960s diamond and marquise sapphire fancy cluster ring in 18kt white gold. Centrally set with seven round brilliant cut diamonds in staggered four claw settings, decorated with fifteen marquise brilliant cut sapphires in flared claw settings, further embellished to the top with rectangular baguette cut diamonds in claw settings. Estimated total diamond weight 1.35cts. Estimated total sapphire weight 3.00cts.